CleanSlate Announces $25 Million Funding to Expand Opioid and Alcohol Addiction Treatment across the NationCleanSlate to Open 22 Additional Centers in 2018 to Provide Evidence-Based Treatment in Areas Hard-Hit by Opioid Epidemic NASHVILLE, Tenn., May 30, 2018-- CleanSlate, a national leader in outpatient pharmacological treatment for the chronic disease of addiction – primarily opioid and alcohol addiction – has secured $25 million in a recent financing. The round was led by HealthQuest Capital, which joins existing controlling investor Granite Growth Health Partners.